what Is electromagnetism??
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Answers
Explanation:
Electromagnetism is a fundamental force in nature consisting of the elements electricity and magnetism. It is also referred to as electromagnetic force. The interaction of electrically charged particles and uncharged magnetic force fields with electrical conductors creates the electromagnetic fields.
Answer:
The phenomenon of the interaction of electric currents or fields and magnetic fields.
the branch of physics concerned with electromagnetism.
Explanation:
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.
Electromagnetic phenomena are defined in terms of the electromagnetic force, sometimes called the Lorentz force, which includes both electricity and magnetism as different manifestations of the same phenomenon. The electromagnetic force plays a major role in determining the internal properties of most objects encountered in daily life. The electromagnetic attraction between atomic nuclei and their orbital electrons holds atoms together. Electromagnetic forces are responsible for the chemical bonds between atoms which create molecules, and intermolecular forces. The electromagnetic force governs all chemical processes, which arise from interactions between the electrons of neighboring atoms. Electromagnetism is very widely used in modern technology, and electromagnetic theory is the basis of electric power engineering and electronics including digital technology.
There are numerous mathematical descriptions of the electromagnetic field. Most prominently, Maxwell's equations describe how electric and magnetic fields are generated and altered by each other and by charges and currents.
The theoretical implications of electromagnetism, particularly the establishment of the speed of light based on properties of the "medium" of propagation (permeability and permittivity), led to the development of special relativity by Albert Einstein in 1905.
A few properties of electromagnetic waves are:
Electromagnetic waves are propagated by oscillating waves electric and magnetic waves oscillating at right angles to each other
They exhibit the properties of interference and diffraction
They travel at a speed of 3 × 108 m/s in a vacuum.
They are transverse waves.
The relationship between the wavelength (λ) and frequency (c) of an electromagnetic wave is given as follows:
c = v λ
A few applications of electromagnetism are:
Electromagnetism serves as a fundamental working principle for many of the home appliances in household applications.
The Maglev trains or high-speed trains work on the principle of electromagnetism.
Electromagnetic radiations are used in the communication system to transfer data from the source to the receiver
In industries, starting from small instruments to large power equipment, electromagnetism is used at least at one stage of their work.
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